Lake Mills city, Wisconsin Demographics & Population 2026
As of 2026, Lake Mills city, Wisconsin has a total population of 6,391, the 135th largest city in Wisconsin, with a median household income of $87,039, which is 15% higher than the state average. The poverty rate is 4.9%.
Key Takeaways
- An exceptionally low poverty rate of 4.9% — among the lowest in Wisconsin.
- 45.0% of adults hold a bachelor's degree or higher — top 10% in Wisconsin.
- Near full employment with an unemployment rate of just 0.5%.
Lake Mills city Quick Facts
How Lake Mills city Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 36 | National average: 60
Education
Educational Attainment (Adults 25+)
Lake Mills city Rankings in Wisconsin
Explore Wisconsin Rankings
Other Cities in Jefferson County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Watertown city | 22,873 | $68,333 | 10.0% | $211,500 |
| Fort Atkinson city | 12,490 | $75,350 | 7.1% | $198,600 |
| Jefferson city | 7,722 | $77,095 | 10.3% | $222,100 |
| Waterloo city | 3,542 | $78,103 | 16.1% | $219,100 |
| Johnson Creek village | 3,367 | $94,552 | 3.4% | $289,000 |
| Palmyra village | 2,042 | $80,709 | 11.3% | $194,200 |
| Cambridge village | 1,507 | $93,424 | 6.4% | $280,000 |
| Sullivan village | 711 | $82,500 | 23.0% | $244,500 |
Cities Similar to Lake Mills city
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Twin Lakes village | 6,351 | $85,800 | $257,000 | 23.3% | 7.9% |
| Rib Mountain CDP | 6,134 | $87,054 | $237,700 | 38.5% | 4.0% |
| Sturtevant village | 6,787 | $84,479 | $231,000 | 23.5% | 8.3% |
| Edgerton city | 5,924 | $84,185 | $243,900 | 35.5% | 6.0% |
| Slinger village | 6,173 | $99,457 | $337,700 | 37.5% | 2.2% |
Population Overview
Lake Mills city is a small city located in Wisconsin, within Jefferson County. The total population is 6,391. It ranks as the 135th most populous out of 807 cities and towns in Wisconsin.
Age Demographics
The median age in Lake Mills city is 40.2 years. This is about average than the state median of 40.1 years.
Economy, Income & Housing
The median household income in Lake Mills city is $87,039. This is 15% higher than the state median of $75,670. Compared to the national median of $78,538, household income here is 11% higher. The poverty rate stands at 4.9%. This is 54% lower than the state poverty rate of 10.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.5%. This is 85% lower than the state rate of 3.3%. The median home value is $282,400. Housing costs are 14% higher than the state median of $247,400. The home-value-to-income ratio is 3.2x. 68.6% of occupied housing units are owner-occupied. This homeownership rate is 1% higher than the state average of 67.9%.
Race & Ethnicity
Lake Mills city has a predominantly White (non-Hispanic) population, comprising 87.1% of all residents. Hispanic or Latino residents account for 8.2%. The Black or African American population (1.1%) is well below the state average of 6.0%. The Asian population (0.5%) is well below the state average of 2.9%.
Education
45.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Lake Mills city in the top 10% of all cities in the state for educational attainment. This is 37% higher than the state rate of 32.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.5%. Notably, 16.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Lake Mills city, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 807 Census-designated places in Wisconsin. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of Lake Mills city, Wisconsin?
Lake Mills city, Wisconsin has a population of 6,391 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Lake Mills city, WI?
The median household income in Lake Mills city is $87,039, which is 11% higher the national median of $78,538.
What is the poverty rate in Lake Mills city, WI?
The poverty rate in Lake Mills city is 4.9%. This means approximately 307 residents live below the federal poverty line.
What is the racial makeup of Lake Mills city, Wisconsin?
Lake Mills city's population is 87.1% White, 1.1% Black, 8.2% Hispanic/Latino, and 0.5% Asian.
What is the median home value in Lake Mills city, WI?
The median home value in Lake Mills city is $282,400. The home-value-to-income ratio is 3.2x.
How educated is Lake Mills city, Wisconsin?
45.0% of adults (25+) in Lake Mills city hold a bachelor's degree or higher, and 16.1% hold a graduate or professional degree.